Means for dumping mine-cars.



Patented Mar. 31, 1914.

2 SHEETS-SHEET 1.

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CDLUMBIA PLANOGBAPN co..wAsMlNnToN, D. c.

H. V. PRYE. MEANS FOR DUMPING MINE CARS. APPLIOATION FILED Arun, 1913.

Patented Mar. 31, 1914.

2 SHEETS-SHEBT 2,

f a Mw'. i; t 'e ilE PI HENRY V. F12/YE, CSE BICKNELL, INDIANA.,ASSIGNOR OF ONE-HALF TO THOMAS GILLESPIE, 0F BICKNELL, INDIANA. v

MEANS FOR .DUMPING MINE-CARS.

Specification of Letters Iatent.

Application filed April 11, 1913.

Patented Mar. 31, 1914..

Serial No. 760,521.

To all whom it may concern Be it known that I, HENRY V. Fern. citizen ofthe United States, residing at Bick-l nellj in the county of Knox andState of Indiana, have invented certain new and useful Improvements inMeans for Dumping Mine-Cars, of which the following is a specification.

This invention relates to mine car cages, and has special reference tomeans for facilitating the dumping of the mine cars and arresting themovement of the cars so that they will not roll from the platform of theca e.

he object of the invention is to provide mechanism of a simple characterwhich will automatically arrest the travel of the mine car when theplatform is tilted so that the contents of the car may be dischargedonto the dump while the car is retained upon the platform.

A further object of the invention is to provide mechanism for the statedpurpose which will be compact and not apt to get out of order and whichwill not interfere in any way with the movement of the cage in the mineshaft.

While the invention is intended more es pecially for use upon mine carcages.l it is capable of use in other connections without materialchange.

The invention is illustrated in the accompanying drawings and will behereinafter fully described, the novel features of the invention beingsubsequently particularly pointed out in the claims following thedescription.

In the drawings: Figure 1 is a side View of my improved mechanismshowing it in the position assumed when the loaded car is being raisedto the mouth of the shaft; Fig. 2 is a longitudinal section showing theposition of the parts when the car is being dumped; Fig. 3 is an endelevation; and Fig. 4 is an enlarged perspective view of the improvedmechanism,

The hoisting cage 1 is illustrated conventionally and in itself forms'nopart of my invention and details of the guide rails and hoisting cablesof the mine shaft have been omitted from the illustration for the sakeof clearness in .the showing of the parts constituting the improvements.

In carrying out my invention, I provide upon the opposite side walls efthe cage a the cage and has its ends journaled in suitable bearings orcastings secured to the same. The standards 5 are held in a fixed spacedrelation by a cross bar or brace 7 and their upper ends are fitted upona transverse rod or bar 8 which passes through the side beams of theplatform and is extended beyond the same. The extremities of this rodare equipped with rollers 9 which may ride in ways or guides 10 inthe-mine shaft or may be easily grasped by the persons operating theplatform at the dump', so that the same may be swung away from and tothe cage, as will be readily understood.

The platform 2 is provided upon its upper side with track rails 12 whichare adapted' to aline with the rails of the track within the mine tunnelso that the loaded car, indicated at 13, may be readily run onto theplatform.

rIhe upper surfaces of these track rails 12 are.

provided at the proper points with slight depressions or notches 111into which the wheels of the mine car may seat so that the car will beheld against travel when the cage is being raised or lowered. To theouter sides of these track rails, at the ends of the same, I securebrackets 15 which are offset from the rails at their inner ends, andbetween the said offset ends and the rails are pivoted links 16 whichhave their innery ends pivoted to the upper ends of stop or brake bars17. These brake bars or stops 17 extend downwardly through longitudinalslots 18 formed in the platform immediately adjacent the track rails andhave their lower ends pivotally secured within the longitudinal slots 19of the arms 5.

When the cage is lowered within the shaft and is at the mouth of a minetunnel, the platform 2 will be supported in a horizontal position sothat the track rails thereon aline with and form practicallycontinuations of the track rails within the tunnel. One end of theplatform will be supported in this position by the rollers 1 engagingthe lower `side of the shaft.

walls of the guides 3 and resting against one closed end of the guide,while the opposite end of the platform will be supported by thestandards 5, as will be readily understood on reference to Fig. 1. Inthis position of the parts, the brake bars or stops 17 will 'be inclinedinwardly with respect to the cage s0 that the inner ends of the links 16will be drawn downwardly and the said links will lie below the surfaceof the track rails so that they will offer no obstruction to themovement of the car onto the platform. Consequently, a car may be rolledonto the platform from a tunnel at either After the car has been rolledonto the platform and its wheels engage the notches 14 therein, the cageis raised to the mouth of the shaft in the usual manner and at the mouthof the shaft 'the'platform is tilted outwardly and downwardly,-therebycausing the standards 5 to swing to the position shown in Fig. 2. Asthe' standardsl are thus moved outwardly andl downwardly, the outer endsof the brake bars or stops will be caused to move' away from the side ofthe cage, and, as thei upper ends of the said bars-tend to follow themovement of the lower ends thereof, thev links'16 will be caused toswing upwardly about their pivotal connect-ions with the brackets 15 tothe position shown in Fig. 2 and in Fig. 4, thereby raising the upperends of the brake bars so-that they will extend across the path of thecar wheels or the aXle upon which said wheels are mounted,`

whereby the movement of the car toward the lower end of the tiltedplatform will be arrested and the car prevented from rolling' from theplatform. l The platform will be prevented from swinging entirely freeof the cage by the rollers 4L engaging the adjacent closed end of theguides 3 and thereby' limitingthe movement of the platform, as

. will be readily understood on reference toA Fig. 2.

- When the contents of the car have been entirely discharged, theplatform is returned to its normal position, and, as it assumes said.position, the supporting standards will swing toward the cage so thatthe stopor Y brake bars will be drawn to their initial positions belowthe tread surface of the track rails and the links drawn down to theplatform sothat no obstruction to the movement of the car from theplatfo-rm will be offered.

. It will be readily noted that my improved mechanism is very simple andcompact and My improved apparatus may be applied to any mine car cagewithout necessitating a reorganization thereof. The usual keepers whichengage between the car wheels may be retained and are indicatedconventionally at 20 and my device will be found an efficient adjunctthereto. These keepers 20 are arranged to swing automatically over thetrack rails between the car wheels as the cage starts to rise from thebottom of t-he shaft and they are intended to hold the wheels in theirseats 'as the platform tilts to cause the car to dump. Itfrequentlyhappens that, becausev of wear, the keepers escape the treadsof the wheels which then leave their seats, as shown in Fig. 2, and arepositively arrested by the stop bars 17. As the platform tilts7 the saidstop bars rise to a position immediately adjacent the car wheels so jthat a very slight movement of the car wheels will bring them againstthe stop bars support for one end of the platform,- a

swinging support for the other end of the platform, and stops actuatedby the swinging support to project above the platform when the platformis tilted.

2. The combination with a hoisting cage, and a tiltable platform, of arolling support for one end of the platform, aV swinging sup-` port forthe other end of theplatform, stops attached to the said swingingsupport and extending through the p-laftform, and means on the platformfor lowering the said stops to the platform in the normal posit-ion ofthe same and raising the stops above theplatform as the platform istilted. I

3. TheV combination with a mine car cage, of guides on the sides of thecage having closed ends, a platform arranged between the sides of thecage, rollers at one end of the platform engaging said guides, and aswinging support for the other end of theY platform mounted on thecage.Y

Ll. The combination with a hoisting cage, of a platform disposed betweenthe sides of the cage, means at one end of the platform to preventrelease of the plat-form from. the cage, a support for the other end ofthe platform pivoted to the sides of the cage,

stops pivoted to said support and rising .through the plat-form, andlinks pivotedof a tiltable platform arranged within the cage andprovided with a longitudinal slot, a Swingin standard pivoted below theplatform within t-he cage, a Stop pivoted to said standard and risingthrough the slot in the platform, and a link pivoted at its outer endkplatform, and movable car-arresting means connected with the tiltablesupport and the platform whereby the tilting of the platform will causesaid car-arresting means to extend into the path of a car on theplatform.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY V. FRYE. [L s] Witnesses:

JOHN S. HOOVER, NELLIE HILBURN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

